Cooking-stove



RATHBONE & HAILE.

Patented May -2, 1865.

Cooking Stove.

T UNITED STATES PATENT; FFICE.

COOKING-STOVE.

Specification forming part of Letters Patent No. 47,567. dated May 2, 1865.

To all witom it may concern:

Be it known that we, LEwIs RArnnoN and WILLIAM HAILES, of Albany, county of Albany, and Stateof New York, have invented a new and useful Improvement in Stoves,

and we do hereby declare that the following is afull, clear, and exact description thereof, reference being had to. the accompanying drawings, makin g a part of this specification, in which- Figure 1 is a longitudinal section taken in a vertical plane'through the center of a stove which is adapted for cooking purposes. Fig. 2 is ahorizontal section through the upper art of the stove. Fig.3 is a perspectivc view of the back plate of the fire-chamber.

Similar letters of reference indicate corre sponding parts. in the three figures.

Bituminous or soft coal is very difficult to burn in the grate of a common cookingstove unless air can be supplied in suflicient quantitles and at all points of the body of coal to support combustion, and as it would be very desirable to use soft coal in cookingstoves our invention consists in so construct ing the firechambers of such stoves as to supply air freely to the sides and bottom of a bed of coal confined within the fire-pot, and

thus furnish oxygen in sufficient quantities.

oven, A A, a fire-chamber, B. fluesa, a and b, ash-box c, and a damper, d, which, when open, gives a direct draft from the fire chamber 3 to the pipe 0, over the oven A, as indic ed by the arrows inFig. 1, but when the damper d isclosed, as shown in the drawings, the products of combustion arising from the fire-pot will be conducted through the flues b and a d-that is to say, they willpass over the oven, down behind the same, thencetoward the front of the stove, beneath the oven, and finally into the central outletflne. a

That portion of thestove to which our invention relates consists of a perforated or grated back plate, I), which, in conjunction with the gratebars E, formsthe fire-pot for containing the coals. This grated or perforated plate 1) forms, with'the oven-plate e, a space, j, which extends transversely across the stove and communicates with the space between the bottom of the ash-pan c and the grate-bars E', as shown in Fig. 1. The form of the guard-plate D is clearly shown in Fig. 3, wherein it will be seen that. it is constructed with wings g g, which have per; forations through them. The perforations through these wings are for the purpose of conducting air from the chamber f into side chambers, F F, which communicate with the fire-potfthrough the openings h h. (Shown in Fig. 2.) The air which is supplied to the fire-pot through the chambers above mentioned enters mainly through the openingz' at the front of the stove; but besides this inlet. we are enabled by our arrangement to introduce air through the side platesof the bottom of the fire pot and the oven of the stove; hence it will be seen that the heat in the oven will be equalized and the guardplate prevented from rapidly burningout. We also have a stratum of air at each end of the fire-pot,cir'cu1atingthrough the chambers and supplying the tire with fuel. Pro vision is made for regulating the supply of air to the firechamber by the employment 'ot'a damper or slide-valve, s,and,if desirable,

dampers may be applied" to the openings through the sides of the stove.

While we do not claim perforating the back plate of the fire-chamber of a cooking-stove or range for the purpose of introducing oxygen above or amidst the products of combustion and burning coals, we do claim- 1. Grating th back plate of a stove so an I the draft-flue will cause air to circulate through the bed of partially-ignited coals from a point near the base to the top-thereof,

- scribed.

from a chamber in rear of said back plate, in i end passages,F; Eez'oss-passagef. gratedbm k such manner that the refractory particles of D, and draft-flue b, substantially as describcd. coal are caused to burn, substantially as de- LEWIS RATHBONE 2., The combiaazibn of afxent passage, i,a WILLIAM HAILES' grated back, D, and acrosspassage, f, sub- Witnesses: stantially as described. VSKB. BUSH, Jr.,

3. The combinationof the front passage, 2', WM. J. DUNN. 

